
Mercedes AAM & DAS Valet Key by Mail — ML W163, SLK R170, SL R129, S W140, G-Class & More
A working start-only key for the Mercedes the dealer gave up on — ML320/ML430, SLK, SL, W140 S-Class, G-Wagen and more. Ship the AAM or DAS immobilizer box and we program the key to it.
Sending several modules? Add them all — one box, one return-shipping charge.

ML W163 (AAM) · SLK R170 1996-2004 · SL R129 1997-2001 · S-Class W140 1997-1999 · G-Class W461 1997-2001 · A W168 / Vaneo W414 (Euro imports)
How It Works
Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.

Pay & Get Address
Click "Order Now", pay securely online. We email shipping address + instructions within minutes.

Ship Your Module
Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Your prepaid inbound label arrives by email — shipping to us costs you nothing.

Get It Back Fast
Work typically completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.
What You Get
- A start-only transponder key programmed to YOUR AAM or DAS module
- Blade precision-cut from your door lock decode (or copied from a working key)
- All-keys-lost handled at the same flat price
- Your module, lock and old keys returned with the new key
- Bench-verified before anything ships back
- Typical 24-hour bench turnaround after your parts arrive
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
AAM trucks
- ML320 / ML430 / ML500 / ML55 AMG (W163, 1998-2005)
DAS classics
- SLK 230 / 320 / 32 AMG (R170, 1996-2004)
- SL 320 / 500 / 600 (R129, Jun 1997-2001)
- S-Class (W140, Jun 1997-1999)
- G-Class (W461, Jun 1997-2001)
- A-Class W168 / Vaneo W414 (European imports)
Scenarios
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- All keys lost on an ML, SLK, SL, W140 or G-Wagen
- Dealer quotes hundreds — or says the key is no longer available
- Bought a classic Mercedes that came with one worn key or none
- Key turns but the immobilizer refuses to authorize a start
- Replaced the AAM or DAS module and nothing starts the car
Won't fix:
- Want remote lock/unlock buttons? The classic remote key service is $375 — same parts shipped
- Module is dead, no-start with a KNOWN-good key? That is the $299 AAM/DAS repair service
- 2000s+ EIS/FBS3 cars (chrome SmartKey fob) — see our Mercedes EIS key programming service
- Mechanical ignition or door lock cylinder failures
The era Mercedes forgot
These cars sit in a gap: too old for the dealer's key systems to support gracefully, too new to run without an immobilizer. The fix is going to the module itself — the AAM behind the ML's dash, the DAS/SKREEM unit on the classics — reading its memory on the bench, and generating a key the module already trusts. No dealer authorization involved, because nothing is being looked up: your own module is the source of truth.
Shipping Instructions
These details are also emailed to you the moment your payment clears.
Ship the immobilizer module — the AAM on a W163 ML, the DAS/SKREEM unit on the classic cars (text your VIN FIRST and we tell you exactly which box and where it lives). For all-keys-lost also ship the driver's door lock so we can decode and cut the blade; if you still have a working key, ship that instead and skip the lock. Ship to PO Box 120241, Arlington TX 76012 (USPS) or 1009 Oakwood Ln # 120241, Arlington TX 76012 (UPS/FedEx). Return shipping is selected and paid at checkout — Standard $29.95, UPS 2-Day $54.95, or UPS overnight $94.95.
What to include in your box
- The AAM (W163 ML) or DAS/SKREEM immobilizer module (classics) — we confirm by VIN before you ship
- All keys lost: the driver's door lock (we decode it to cut the new blade)
- Any existing keys, working or not
- VIN + year, and a printed order confirmation
- Your name, return address, and phone number
Ship to
Auto Module Lab
If shipping USPS
PO Box 120241
Arlington, TX 76012
If shipping UPS or FedEx
1009 Oakwood Ln # 120241
Arlington, TX 76012
Your prepaid inbound label (already addressed) arrives by email the moment you order; the return label is bought when your module reaches the bench and ships on the speed you chose at checkout.
Frequently Asked
Still have a question? Text us — replies in minutes.
Which module do I send?
Why do you need my door lock for all-keys-lost?
Is all-keys-lost extra?
My ML cranks but will not start and the key is fine. Is this the right service?
Does this cover my 2006 SLK or 2003 E-Class?
Related Services
Other bench services for the same brand or use case.

Mercedes EIS Cloning (Pre-2014)
Failed Mercedes EIS leaving you with a car that won't start? We clone it to a replacement EIS — your existing keys keep working, no re-keying the car.

Mercedes Key Replacement via EIS
Lost your only Mercedes key? Ship us your EIS — we program a fresh working key directly on the bench.

Mercedes ELV Emulator Programming
ELV (steering lock) failed? Ship your EIS — we program and supply a matched ELV emulator.
Where we serve Mercedes AAM / DAS Valet Key (ML, SLK, SL & More)
Mail-in means nationwide — we accept modules from all 50 states and DC from our Arlington, Texas lab. See your state, metro, or specific vehicle:
Ready to ship?
$250 flat, typical 24-hour bench turnaround. Pay now, get the shipping address by email, drop it in the mail. Your module is typically back on your bench within a week.